In this paper, the development of D.C circuit simulation software, using Microsoft visual C #.Net, has been achieved. This paper aims at analyzing a purely resistive planar circuit, displaying current direction as they flow through components and having a user-friendly Graphic User Interface (GUI). The methodology employed in this paper includes: equations, pseudo code, algorithm, and flowchart and Microsoft C #.Net codes. The solutions obtained from the software correlate with those generated manually. The software has an efficiency of 99.3396% which makes it very reliable for circuit analysis and simulation.